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authorColin Watson <cjwatson@debian.org>2007-06-12 16:16:35 +0000
committerColin Watson <cjwatson@debian.org>2007-06-12 16:16:35 +0000
commitb7e40fa9da0b5491534a429dadb321eab5a77558 (patch)
treebed1da11e9f829925797aa093e379fc0b5868ecd /msg.c
parent4f84beedf1005e44ff33c854abd6b711ffc0adb7 (diff)
parent086ea76990b1e6287c24b6db74adffd4605eb3b0 (diff)
* New upstream release (closes: #395507, #397961, #420035). Important
changes not previously backported to 4.3p2: - 4.4/4.4p1 (http://www.openssh.org/txt/release-4.4): + On portable OpenSSH, fix a GSSAPI authentication abort that could be used to determine the validity of usernames on some platforms. + Implemented conditional configuration in sshd_config(5) using the "Match" directive. This allows some configuration options to be selectively overridden if specific criteria (based on user, group, hostname and/or address) are met. So far a useful subset of post-authentication options are supported and more are expected to be added in future releases. + Add support for Diffie-Hellman group exchange key agreement with a final hash of SHA256. + Added a "ForceCommand" directive to sshd_config(5). Similar to the command="..." option accepted in ~/.ssh/authorized_keys, this forces the execution of the specified command regardless of what the user requested. This is very useful in conjunction with the new "Match" option. + Add a "PermitOpen" directive to sshd_config(5). This mirrors the permitopen="..." authorized_keys option, allowing fine-grained control over the port-forwardings that a user is allowed to establish. + Add optional logging of transactions to sftp-server(8). + ssh(1) will now record port numbers for hosts stored in ~/.ssh/known_hosts when a non-standard port has been requested (closes: #50612). + Add an "ExitOnForwardFailure" option to cause ssh(1) to exit (with a non-zero exit code) when requested port forwardings could not be established. + Extend sshd_config(5) "SubSystem" declarations to allow the specification of command-line arguments. + Replacement of all integer overflow susceptible invocations of malloc(3) and realloc(3) with overflow-checking equivalents. + Many manpage fixes and improvements. + Add optional support for OpenSSL hardware accelerators (engines), enabled using the --with-ssl-engine configure option. + Tokens in configuration files may be double-quoted in order to contain spaces (closes: #319639). + Move a debug() call out of a SIGCHLD handler, fixing a hang when the session exits very quickly (closes: #307890). + Fix some incorrect buffer allocation calculations (closes: #410599). + ssh-add doesn't ask for a passphrase if key file permissions are too liberal (closes: #103677). + Likewise, ssh doesn't ask either (closes: #99675). - 4.6/4.6p1 (http://www.openssh.org/txt/release-4.6): + sshd now allows the enabling and disabling of authentication methods on a per user, group, host and network basis via the Match directive in sshd_config. + Fixed an inconsistent check for a terminal when displaying scp progress meter (closes: #257524). + Fix "hang on exit" when background processes are running at the time of exit on a ttyful/login session (closes: #88337). * Update to current GSSAPI patch from http://www.sxw.org.uk/computing/patches/openssh-4.6p1-gsskex-20070312.patch; install ChangeLog.gssapi.
Diffstat (limited to 'msg.c')
-rw-r--r--msg.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/msg.c b/msg.c
index 3e4c2882c..cd5f98c4f 100644
--- a/msg.c
+++ b/msg.c
@@ -1,3 +1,4 @@
1/* $OpenBSD: msg.c,v 1.15 2006/08/03 03:34:42 deraadt Exp $ */
1/* 2/*
2 * Copyright (c) 2002 Markus Friedl. All rights reserved. 3 * Copyright (c) 2002 Markus Friedl. All rights reserved.
3 * 4 *
@@ -21,14 +22,23 @@
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */ 24 */
25
24#include "includes.h" 26#include "includes.h"
25RCSID("$OpenBSD: msg.c,v 1.8 2005/05/24 17:32:43 avsm Exp $"); 27
28#include <sys/types.h>
29#include <sys/uio.h>
30
31#include <errno.h>
32#include <stdio.h>
33#include <string.h>
34#include <unistd.h>
35#include <stdarg.h>
26 36
27#include "buffer.h" 37#include "buffer.h"
28#include "getput.h"
29#include "log.h" 38#include "log.h"
30#include "atomicio.h" 39#include "atomicio.h"
31#include "msg.h" 40#include "msg.h"
41#include "misc.h"
32 42
33int 43int
34ssh_msg_send(int fd, u_char type, Buffer *m) 44ssh_msg_send(int fd, u_char type, Buffer *m)
@@ -38,7 +48,7 @@ ssh_msg_send(int fd, u_char type, Buffer *m)
38 48
39 debug3("ssh_msg_send: type %u", (unsigned int)type & 0xff); 49 debug3("ssh_msg_send: type %u", (unsigned int)type & 0xff);
40 50
41 PUT_32BIT(buf, mlen + 1); 51 put_u32(buf, mlen + 1);
42 buf[4] = type; /* 1st byte of payload is mesg-type */ 52 buf[4] = type; /* 1st byte of payload is mesg-type */
43 if (atomicio(vwrite, fd, buf, sizeof(buf)) != sizeof(buf)) { 53 if (atomicio(vwrite, fd, buf, sizeof(buf)) != sizeof(buf)) {
44 error("ssh_msg_send: write"); 54 error("ssh_msg_send: write");
@@ -64,7 +74,7 @@ ssh_msg_recv(int fd, Buffer *m)
64 error("ssh_msg_recv: read: header"); 74 error("ssh_msg_recv: read: header");
65 return (-1); 75 return (-1);
66 } 76 }
67 msg_len = GET_32BIT(buf); 77 msg_len = get_u32(buf);
68 if (msg_len > 256 * 1024) { 78 if (msg_len > 256 * 1024) {
69 error("ssh_msg_recv: read: bad msg_len %u", msg_len); 79 error("ssh_msg_recv: read: bad msg_len %u", msg_len);
70 return (-1); 80 return (-1);